Hatter s kettle



(No Model.)V

C. W. GLOVBR.

HATTBRS KBTTLB.

PatentedA Oct. 10, 1882'.I

UNITED STATES PATENT OFFICE.

oAnLos w. Gnovnn, on BOSTON, MASSACHUSETTS.

HATTERS KETTLE.

SPECIFICATION forming part of Letters Patent No. 265,798, dated October 10, 1882.

- AApplication filed August I6, 1882. (No model.)

To all lwhom it may concern Be it known that I, CARLOS' W. GLcVEa, a citizen ofthe United States, residing at Boston, in the county of Suffolk and State ot' Massachusetts, have invented certain new and useful Improvements in Hatters Kettles, of which of the strips or cants of which the kettle is com-` posed. Fig. 4 is an end View ot' the saw-log,

illustrating the relative position of boards as they are usually sawed; and Fig. 5 represents the surface of an ordinary board of pla-nk.

Three serious objections are found in operating hatters7 kettles as they are at present constructedthat is, with the body ot' uprightV stares bound together with hoops, likea barrel, and with the rim or tlange made in sections, each section consisting ot' a single lboard ot' suitable width. The lirst ot' these defects is owing to the fact that nearly or quite all boards lack uniformity in the grain-that is,'the grain at the central part. of the board does not run in the same direction as that near the edges, from the fact that the wood is formed in consecutive rings. This irregularity in the grain is illustrated in Fig. 5, which represents a board cut from near the center ot' the log, as at e2, Figxt. It will be found in practice that if each section or segment of the kettle be made of a single piece ot' board (the liange being wide enough to require the entire width ot' the board) it (the iiange) will, after being used a short time, become so rough in the center as to seriously impair its value, the constant swelling and drying causing the wood to blister and splinter. Again, it is known that there is a marked ditference in the amount of expansion and contraction which is produced by wetting and drying in the different boards cut from the same log, this diiierence being determined by their position relative to the center or heart of the log. Therefore, even with the exercise of great care in the selection of boards for the construction of kettles, their unequal swelling and shrinking result in detaching the parts of the llange from each other and from the body of the kettle to such an extent that they soon leak badly, particularly at the point where the flange joins the body of the kettle. Again, owing to this and other diflculties in keeping the kettles tight, the liquid, which generally contains more `or less acid, soon corrodes the hoops and renders them worthless, which necessitates their Abeing replaced at great expense of time and money, as when the hoops are replaced the shelving which surrounds the kettle below the liange must be removed and then replaced. All of these recited objections I propose to remedy by making both the body and the flange of the kettle of narrow strips of wood, as I will now proceed to explain.

In the drawings, A represents the bottom, which may be made of boards or planks ofthe usuall width when preferred. 'Ihe body is composed ot' Gants b, having both ends heveled, as plainly shown in Figs. 2 and 3. The pieces of which the bottom Ais composed may beeithertongued and grooved or otherwise put together so as to be water-tight. The sides of the body B and the iiange C are made oi' cants b and c, in forni substantially as shown in Fig. 3. These cants are made by cutting boards into strips on the dotted lines in Fig. 5. By preference I cut these strips ot the saine width as the board or plank is thick, thus making them square in cross-section; but this may not be essential. After cutting the strips I assort them,`using those which are taken from the center ofthe board, and cut them into suitable lengths, with such bevel at each end as will adapt them, when laid in the shape of a heXa-.

gon, to form closejoints. Ithen nail one thickness of them tirmly to the bottom, under the arrangement shown in full lines, Fig.2. I then nail on a second course, with their ends breaking the joints of the first course, as shown 4in dotted lines Fi .2. )roceedin in similar manner until the desired height is attained. The tlange Gis made of cants c, nailed together in the same manner. and ot' substantially the same shape as those employed for the body B, except that their length increases as the flange grows larger, and their ends are allgrooved to receive binding-pieces c at each corner. As there is no friction by rubbing upon the body B, it may be made of cants cut from the central part ot' the board, as indicated in Fig. 5; but I prefer to make the flange entirely from IOO the outer or edge strips, in order to insure that they shall remain smooth under the friction and repeated wetting and drying to which they are subjected.

By an examination of Fig. 4 it will be seen that in order to insure that the entire flange shall be made ot' wood in which the grain runs in the same direction itwill b e necessary to turn the strips out from the center ofthe boards or planks e e one-quarter ot' the way around and then place adjoining them strips cut from the edges of the planks e2 c2. By such an arrangement a tlange may be constructed all the sections of which will swell and shrink with a great uniformity and with much less liability of leakage at the point ot' contact with each other or with the body B than there would be it' a part of the sections were made from one of the boards e and the other from the board marked c3,- but the most important improvement in the tlangeis the smooth surt'ace,which is maintained under friction and alternate wetting and drying at the central part ofthe flange, Where the rubbing and other manipulations of the hatb0dies are etl'ected.

D is the shelf, arranged below the flange and supported upon the bracket E or otherwise.

F represents a worm or coil, provided with induction and eduction pipes G G for heating theliquid Within the kettle. 0f course any desired kind of heater may be employed.

Under my construction the overlapping and joint-breaking cants b form a body which is sutflciently strong to enable me to dispense entirely with the use ot' hoops, and therefore avoid not only the expense of them in first building the kettles, but also the cost, both in time and money, of the frequent renewals which are necessary with those in present use. As the grain ot' my cants b runs horizontally around the kettle, it furnishes a much rmer support for the nails or screws used in securing the ange in position than can be provided by the ordinary construction; and as there is more regularity in the shrinking` and swelling of the Bange it is not soreadily detached from the body as in the old style of kettles.

I do not wish to be limited-to the exact dimensions of the strips nor the arrangement ot' the grain of the cants that I have herein set forth, as some variation may be made and yet' many of the advantages incident to my construction be retained; and it is apparentL that the body A B or the flange C C might be advantageously used in connection with the corresponding part of an ordinary kettle.

What I claim isl. The body B ot' a hatters kettle, formed ot' a bottom, A, and cants or strips b, having their ends arranged to break joints, substantially as set forth.

2. The flange (l, composed ot' strips c, having a uniformity ot' grain, substantially as set forth. N

3. A hatters kettle composed ofthe body A B and flange C, formed of narrow strips or oants ot' wood, substantially as set forth.

ln testimony whereofl have hereunto set my hand in the presence of two subscribing witnesses.

CARLOS W. GLOVER. f'

Witnesses:

EDWIN W. BROWN, WM. S. BELLows. 

